scholarly journals ECOCURE BLUE – NEW COLD BOX SYSTEM WITH ULTRA-HIGH EFFICIENCY AND AS LOW AS POSSIBLE EMISSIONS

2018 ◽  
pp. 63-68
Author(s):  
P. N. Vacelet ◽  
D. Táborský
Keyword(s):  
Cost Effectiveness ◽  
Environmental Protection ◽  
High Efficiency ◽  
Health And Safety ◽  
Limit Values ◽  
Economic Issues ◽  
Exposure Limit ◽  
Equal Importance ◽  
Cold Box ◽  
Core Production

By omitting materials subject to the labeling requirement in part 1 cold-box resin, Düker GmbH from Laufach can achieve an impressive reduction in emissions.Emission and workplace exposure limit values represent major challenges for foundries, and are becoming increasingly important due to every stricter statutory regulations. In particular, compliance with emission guidelines is essential in safeguarding company sites, and is now of equal significance as technical and economic issues. Modern foundries such as Düker GmbH from Laufachpursue a sustainable corporate policy in which the three pillars of cost-effectiveness, social responsibility and environmental protection are accorded equal importance. Düker’s example shows how the use of the new ECOCURE BLUE technology supports environmental protection and occupational health and safety, while also facilitating efficient, highly productive core production. 

scholarly journals A Study on Liquid Leak Rates in Packing Seals

2021 ◽  
Vol 11 (4) ◽  
pp. 1936
Author(s):  
Abdel-Hakim Bouzid
Keyword(s):  
Environmental Protection ◽  
Liquid Flow ◽  
Environmental Protection Agency ◽  
Gas Flow ◽  
Outer Boundary ◽  
Health And Safety ◽  
Toxic Substances ◽  
Packing Materials ◽  
Thickness Change ◽  
Flow Through

The accurate prediction of liquid leak rates in packing seals is an important step in the design of stuffing boxes, in order to comply with environmental protection laws and health and safety regulations regarding the release of toxic substances or fugitive emissions, such as those implemented by the Environmental Protection Agency (EPA) and the Technische Anleitung zur Reinhaltung der Luft (TA Luft). Most recent studies conducted on seals have concentrated on the prediction of gas flow, with little to no effort put toward predicting liquid flow. As a result, there is a need to simulate liquid flow through sealing materials in order to predict leakage into the outer boundary. Modelling of liquid flow through porous packing materials was addressed in this work. Characterization of their porous structure was determined to be a key parameter in the prediction of liquid flow through packing materials; the relationship between gland stress and leak rate was also acknowledged. The proposed methodology started by conducting experimental leak measurements with helium gas to characterize the number and size of capillaries. Liquid leak tests with water and kerosene were then conducted in order to validate the predictions. This study showed that liquid leak rates in packed stuffing boxes could be predicted with reasonable accuracy for low gland stresses. It was found that internal pressure and compression stress had an effect on leakage, as did the thickness change and the type of fluid. The measured leak rates were in the range of 0.062 to 5.7 mg/s for gases and 0.0013 and 5.5 mg/s for liquids.

UNESCO's University—Industry—Science Partnership Programme (UNISPAR)

1994 ◽  
Vol 8 (3) ◽  
pp. 182-184 ◽  
Author(s):  
Yasuyuki Aoshima
Keyword(s):  
Environmental Protection ◽  
Central Europe ◽  
Industrial Development ◽  
Third World ◽  
Main Issue ◽  
Government Officials ◽  
Public And Private ◽  
Economic Issues ◽  
University Industry

Technology-led industrialization has become a main issue in Third World countries and in Eastern and Central Europe. Professors of engineering universities, researchers of public and private institutes, engineers and managers in industry and government officials are becoming deeply involved in technological and socio-economic issues for sustainable industrial development with environmental protection. UNESCO sees cooperation among universities, industry and government as a key strategy in the process of industrialization. This article describes UNESCO's various projects and initiatives designed to establish and encourage such cooperation.

scholarly journals Effects of communicating uncertainty descriptions in hazard identification, risk characterization, and risk protection

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0253762
Author(s):  
Peter Wiedemann ◽  
Franziska U. Boerner ◽  
Frederik Freudenstein
Keyword(s):  
Hazard Identification ◽  
Qualitative Description ◽  
Potential Health ◽  
Limit Values ◽  
Exposure Limit ◽  
Study Results ◽  
Dependent Variables ◽  
Qualitative Uncertainty ◽  
Risk Protection ◽  
Uncertainty Information

Uncertainty is a crucial issue for any risk assessment. Consequently, it also poses crucial challenges for risk communications. Many guidebooks advise reporting uncertainties in risk assessments, expecting that the audience will appreciate this disclosure. However, the empirical evidence about the effects of uncertainty reporting is sparse and inconclusive. Therefore, based on examples of potential health risks of electromagnetic fields (EMF), three experiments were conducted analysing the effects of communicating uncertainties separately for hazard identification, risk characterisation and risk protection. The setups aimed to explore how reporting and how explaining of uncertainty affects dependent variables such as risk perception, perceived competence of the risk assessors, and trust in risk management. Each of the three experiments used a 2x2 design with a first factor presenting uncertainty descriptions (as used in public controversies on EMF related health effects) or describing a certainty conditions; and a second factor explaining the causes of uncertainties (by pointing at knowledge gaps) or not explaining them. The study results indicate that qualitative uncertainty descriptions regarding hazard identification reduce the confidence in the professional competencies of the assessors. In contrast, a quantitative uncertainty description in risk characterisation–regarding the magnitude of the risk–does not affect any of the dependent variables. Concerning risk protection, trust in exposure limit values is not affected by qualitative uncertainty information. However, the qualitative description of uncertainty regarding the adequacy of protection amplifies fears. Furthermore, explaining this uncertainty results in lower text understandability.

scholarly journals Važnost ekološkog dizajna u kružnoj ekonomiji s naglaskom na eko namještaj

2021 ◽  
Vol 11 (1) ◽  
pp. 91-113
Author(s):  
Anamarija Trošić
Keyword(s):  
Environmental Protection ◽  
Negative Impact ◽  
Health And Safety ◽  
Furniture Industry ◽  
Ethical Awareness ◽  
Green Materials ◽  
Clean Environment ◽  
The World ◽  
End Use ◽  
Design Techniques

In order to decrease the environmental problems in recent years in the world, caused mainly by foreign trade, changes and the introduction of environmental approaches within the business of companies are necessary. Eco design is a powerful tool that pushes boundaries in design, and at the same time participates in raising awareness about environmental protection. At the same time, it reduces environmental pollution and costs, and increases the environmental efficiency and profitability of organizations. Cost reduction can be a particularly important factor in attracting companies to introduce and apply this discipline. It connects with the circular economy and sustainable development and proposes instructions to designers to reduce their negative impact on the environment, choosing environmentally friendly materials, processes and technology. In the world, but also in Croatia, it is necessary to give priority to the development of technology for designing green materials and design technology, design techniques for cleaning paints and compounds and design techniques for a clean environment. The purpose of the article is to provide the public with a deeper understanding of how and whether there is a need to use more green products and furniture. Businesses need to focus on marketing sustainable furniture to a greater extent in order to increase the purchase, but also the awareness of green furniture consumption. The furniture industry is one of those committed to improving its operations in the territory of environmental protection. Eco furniture is easily repaired, disassembled and recycled, and there is awareness in its design, production and end use. Era grupa d.o.o. is a company that deals with ecological furniture that was designed and manufactured in Croatia and has reached a level of high environmental and ethical awareness. The aim is to produce an impact on the qualitative improvement of products in the furniture industry, which is based on the use of ecodesign at all stages of production and reduction of emissions of harmful substances and respect for the health and safety of workers and end users. Also, their desire is to establish a Croatian eco-design that is recognizable and that will affect the competitiveness of Croatian products in the world.

The Integration of Safety, Environmental and Quality Management Systems

2005 ◽  
pp. 304-316
Author(s):  
Werner Strauss ◽  
Klaus-Dieter Herrmann ◽  
Christoph Roenick
Keyword(s):  
Quality Management ◽  
Occupational Health ◽  
Environmental Protection ◽  
Business Processes ◽  
Health And Safety ◽  
Occupational Health And Safety ◽  
Management Systems ◽  
Quality Management Systems ◽  
The Future ◽  
Legal Security

This chapter will show how the demands on safety, environmental and quality management systems and their implementation into IT solutions have changed over the years and how such systems may appear in the future. Tangible business processes from the areas of occupational health and safety and environmental protection are described and a solution shown as to how these can be dealt with in a task-related way. Furthermore, there will be shown the connection between these business processes and the relevant legislation and the special benefits pertaining to legal security. Following this we describe how the linking of IT systems mentioned with scientific management systems with the primary processes of the company can be arranged. We also provide a look at the benefits arising from using such systems. The chapter concludes with a critical look at the future distribution and use of such integrated, process-oriented and legally based management systems. This chapter is particularly directed to companies that have set the carrying out of the material-related legal requirements and cost reduction through thought-out product use as a corporate objective. The concept of a networked corporate occupational health and safety and environmental protection information system and its implementation as a standard product will be introduced. Core components include basic data maintenance, modules for supporting decentralised specialised tasks and an efficient reporting system used at all locations and linked to an intranet.

scholarly journals Externally Fired Combined Cycles (EFCC): Part B — Alternative Configurations and Cost Projections

1996 ◽  
Author(s):  
Stefano Consonni ◽  
Ennio Macchi
Keyword(s):  
High Temperature ◽  
Heat Exchangers ◽  
Gas Turbines ◽  
High Efficiency ◽  
Complete Combustion ◽  
Economic Issues ◽  
Temperature Heat ◽  
Combined Cycles ◽  
Power Outputs ◽  
The Cost

Externally Fired Combined Cycles (EFCC) constitute one of the options allowing the use of “dirty” fuels like coal, biomass or waste in conjunction with modern, high efficiency gas turbines. This two-part paper discusses thermodynamic, technological and economic issues crucial to the successful realization of EFCCs. Part B discusses the cycle arrangement, its implications for the design and the cost of the high temperature heat exchangers, the effects of scale and the economic prospects. An “enhanced” configuration whereby the excess air sent to the combustor is limited to the minimum required for complete combustion can reach net LHV efficiencies above 50%, with relatively low high-temperature heat transfer surface requirements. Cost projections are hindered by the uncertainty on the cost of the high temperature heat exchangers. Estimates based on published and proprietary data collected by the authors indicate that EFCCs should be cost-competitive with IGCCs, especially at medium-low power outputs.

Blue light hazard: does rat retina make relevant model for discussing exposure limit values applicable to humans?

2019 ◽  
Vol 54 (2) ◽  
pp. 141-147
Author(s):  
S. Point ◽  
M. Beroud
Keyword(s):  
Blue Light ◽  
Rat Model ◽  
Relevant Model ◽  
Limit Values ◽  
Led Lighting ◽  
Rat Retina ◽  
Model Experiments ◽  
Exposure Limit ◽  
Scientific Papers

Recent scientific papers have drawn attention to potential blue light hazard associated with the use of LED lighting and the validity of exposure limit values of safety norms has been called into question. But can data coming from rat model experiments be extrapolated to human? This article provides some basic recommendations regarding rat retinal irradiance calculations and its potential extrapolation to human.

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